<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>flex小米手机13布局</title>
</head>

<body>
    https://www.mi.com/redmi-k60-pro
    <div class="content">
        <div class="box">
            <div class="box-child">1</div>
            <div class="box-child">2</div>
            <div class="box-child">3</div>
            <div class="box-child">4</div>
            <div class="box-child">5</div>
            <div class="box-child">6</div>
            <div class="box-child">7</div>
        </div>
    </div>
    <style>
        .box {
            display: grid;
            grid-gap: 10px;
            grid-template-columns: 100px 1fr 3fr 2fr;
            grid-template-rows: 100px 1fr 1fr;
            grid-auto-flow: row dense;
        }

        .box .box-child:first-child {
            grid-column: 1 / span 2;
        }

        .box .box-child:nth-child(2) {}

        .box>div {
            display: flex;
            justify-content: center;
            align-items: center;
            font-size: 150%;
            background-color: #444;
            color: #fff;
            border-radius: 18px;
        }

        .content {
            max-width: 1200px;
            margin: 0 auto;
        }
    </style>

</body>

</html>